Been using aero cloners for 15 years man, long before there were any for sale to the public. But I’m sure you have more experience than that. And if you read directions put out by cloner manufacturers they state high 70’s - 80 is ideal for rooting. Warmer temps increase the speed of rooting, this is the most basic and well know aspect of rooting cuttings. Here’s some pics from my last run. First one is 6 days, 10 days planted. View attachment 4805476View attachment 4805477View attachment 4805478
They've been on sale for at least 22 years, I know because I bought one 22 years ago.